Benjamin f



B; F HARRISON.

' Thin-Coupling.

No 92,821. Patented July 20, 1869.

N-FETERS, PrmTO-LITHOGRAF'HER. WASHINGTON, D c.

@atwt with;

BENJAMIN-F. HARRISON, or NEWARK, NEW JERSEY.

.T Je ttcrs Patent No. 92,821, dated J uly 20, 1869; mztcdated July 15,1869.

' Trims-COUPLING.

Ihe Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern Be it known that I, BENJAMIN F. HARRISON, ofthe city of Newark, in the county of Essex, and State of New Jersey,have invented certain Improvements in Couplings of 'lhllls to Carriages;and-I do hereby declare the following to be a -full and exactdescription,

thereof, reference being herein had to the drawings that-accompany thisspecification as part of the same.

The nature of my improvement consists in so combining a screw and capbox that it shall allow of apractical' adjustment of the pressure of theflexible collar upon the draught-bolt or pin in the clip, the collar orpacking, when 'first inserted, made or forced into an oval form, the nutbeing tight, while yet aspace is left between thecap and the box,allowing a tightening'or following up of the cap on the collar orpacking by the screw upon the draught-pin or bolt, as the collar orpacking shrinks or wears away.

In the drawings Figure 1 represents the combined box and screw in aposition in a coupling which brings the adjustingmut on the upper sideof the coupling.

Figure 2 represents the position of the combined screw-box reversed, sothat the adjusting-nut is on the under side. I

Figure 3 is an end and back view of the combined screw-box.

The same letters refer to the same parts each" A denotes thecarriage-axle;

B, the part technically termed the clip; l,

O, the eyepiece, to which the thills are attached;

'D shows the thill and V, the collar or packing.

-In fig. 1, the box for 'thereceptionof the fleijble encasing V, of thedraugl1t-pin W,'- is formed in the eye-piece G. In fig. 2, itis-formedin the clip B. In the former, the clip, embraces theeyepiece-O. Inthe' latter, the eye-piece embraces the clip. In both, thecombined screw-box cap :2 t-confines the encasing V to the draught-pinW,'adjustable as to pressure by the nut '21, the screw and the cap-boxbeing formed of one piece of metal, and so made that they will -not cometogethertight or solid while the-collar o'r'packing. is between'themetal and the pinor bolt \V, but

can be drawn tighter, atpleasure, by'the screw. I

\Vhat I claim as my improvement, and-desire to secure by Letters Patentis-- I The combination of the screw-cap s t with the collar-packing V,constructed and arranged in the mannerand for the purpose shown.

Witnesses: B. 1 HARRISON.

W. M. Goonmc, EDWARD COLLVER.

